Byombi ibimenyetso n urusaku mubitumanaho birashobora gufatwa nkibikorwa bidasanzwe bihinduka mugihe.
Inzira isanzwe ifite ibiranga ibintu byahinduwe nigihe cyakazi, gishobora gusobanurwa muburyo bubiri butandukanye ariko bufitanye isano ya hafi: (1) Inzira isanzwe ni gahunda yimikorere itagira iherezo; (2) Inzira idasanzwe ni urutonde rwimpinduka zidasanzwe.
Imiterere yimibare yimikorere idahwitse isobanurwa nigikorwa cyo kugabura cyangwa imikorere yubucucike. Niba imibare yimibare yimikorere idahwitse yigihe cyo gutangirira, byitwa inzira ihagaze neza.
Ibiranga imibare nubundi buryo bwiza bwo gusobanura inzira zidasanzwe. Niba uburyo bwibikorwa buhoraho kandi imikorere ya autocorrelation R (t1, t1 + τ) = R (T), inzira ivugwa ko ihagaze muri rusange.
Niba inzira ihagaze neza, igomba rero kuba ihagaze mugari, naho ubundi ntabwo arukuri.
Inzira ni ergodic niba igihe cyayo cyagereranijwe kingana nimpuzandengo y'ibarurishamibare.
Niba inzira ari ergodic, noneho nayo irahagaze, naho ubundi ntabwo byanze bikunze ari ukuri.
Imikorere ya autocorrelation R (T) yimikorere rusange ihagaze nigikorwa kimwe cyigihe cyo gutandukanya r, na R (0) bingana nimbaraga zose zisanzwe kandi nigiciro kinini cya R (τ). Ubucucike bwimbaraga Pξ (f) nimpinduka ya Fourier yimikorere ya autocorrelation R (ξ) (Wiener - Sinore ya Sinchin). Izi mpinduka zigena isano yo guhinduka hagati yigihe cyagenwe na domaine yumurongo. Ikwirakwizwa rishoboka ryibikorwa bya Gaussiya ryubahiriza isaranganya risanzwe, kandi ibisobanuro byuzuye byerekana imibare bisaba gusa imibare yabyo. Ikwirakwizwa rimwe rishoboka rishobora guterwa gusa nuburyo bwo gutandukana, mugihe ibice bibiri-byo gukwirakwiza biterwa ahanini nimirimo ifitanye isano. Inzira ya Gaussiya iracyari inzira ya Gaussiya nyuma yo guhinduka kumurongo. Isano iri hagati yimikorere isanzwe yo gukwirakwiza nigikorwa cya Q (x) cyangwa erf (x) ni ingirakamaro cyane mu gusesengura imikorere irwanya urusaku rwa sisitemu yitumanaho. Nyuma yimikorere idahwitse ξi (t) inyuze kumurongo umwe, inzira yayo ξ0 (t) nayo irahagaze.
Ibarurishamibare biranga imirongo migari itunganijwe hamwe na sine-wave hiyongereyeho urusaku ruto rwa Gaussian urusaku rukwiranye nisesengura ryimiyoboro myinshi igenda igabanuka muri sisitemu yo guhinduranya / sisitemu ya sisitemu / itumanaho ridafite umugozi. Ikwirakwizwa rya Rayleigh, Gukwirakwiza umuceri no gukwirakwiza bisanzwe ni ibintu bitatu bikunze kugabanywa mu itumanaho: ibahasha yerekana ibimenyetso bitwara sinusoidal wongeyeho urusaku ruto rwa Gaussiya ni urusaku rwumuceri. Iyo ibimenyetso amplitude ari binini, bikunda kugabanwa bisanzwe. Iyo amplitude ari nto, ni hafi gukwirakwiza Rayleigh.
Urusaku rwera rwo muri Gaussiya nicyitegererezo cyiza cyo gusesengura urusaku rwiyongera rwumuyoboro, kandi isoko nyamukuru y’urusaku mu itumanaho, urusaku rw’ubushyuhe, ni urwo rusaku. Indangagaciro zayo mubihe bibiri bitandukanye ntaho zihuriye kandi zigenga imibare. Nyuma yuko urusaku rwera runyuze muri sisitemu igarukira, ibisubizo ni urusaku ruke. Urusaku ruke-rwera rwijwi hamwe na band-pass urusaku rwera birasanzwe mubisesengura.
Ibyavuzwe haruguru ni ingingo "itunguranye ya sisitemu yitumanaho" yazanwe na Shenzhen HDV Phoelectron Technology LTD., Na HDV nisosiyete izobereye mu itumanaho rya optique nkibikoresho nyamukuru bitanga umusaruro, umusaruro w’isosiyete: Urutonde rwa ONU, rukurikirana rwa module,Urukurikirane rwa OLT, transceiver ikurikirana ni urukurikirane rwibicuruzwa.
